..... affects many individual investors, who simply have too many stocks (often, too many or the wrong type of mutual funds) in their portfolio; a company's share value could shoot to the moon, but it would have very little impact on the fund's overall performance because of its very small exposure. (*) Diworsification (*) Portfoliosis (*) Shallowshare (*) Thinpliance
This is a companion discussion topic for the original entry at https://english.best/questions/8550,___-affects-many-individual-investors-who-simply-have-too-many-stocks-often-too-many-or-the-wrong-type-of-mutual-funds-in-their-portfolio-a-companys-share-value-could-shoot-to-the-moon-but-it-would-have-very-little-impact-on-the-funds-overall-performance-because-of-its-very-small-exposure/